The Olsen twins aren't necessarily super well-known for how they style their jeans, but that doesn't mean there's not a treasure trove of wisdom ready to be mined and stocked away for later. And, if nothing else, it's always fun to just look at photos of their outfits, right?

Keep scrolling for 17 of our favourite denim lessons, as taught by the two and only Mary-Kate and Ashley Olsen!